Facts about Argon

Name: Argon
Symbol: Ar
Atomic Number: 18
Atomic Mass: 39.95 amu
Melting Point: -189.3 Celsius -83.85 Kelvin
Boiling Point: -186 Celsius -87.15 Kelvin
Crystal Structure: Cubic
Color: Colorless
Number of protons/electrons: 18
Number of neutrons: 22